ANTHOZOA, HYDROZOA. 
Gcel. 8 
Fossil Corals. 
For Carter, Dawson, Nicholson, and others on Stromatoporidm, see 
Hydrozoa {infra). R. Etheridge, Palaeontology of the coasts of the 
Arctic lands visited by the late British expedition ; J. G. Soc. xxxiv. 
pp. 668-636. Id. & H. A. Nicholson^ On the genus Palmacis and the 
species occurring in British carboniferous rocks ; Ann. N. H. (5) i. 
pp. 206-227, pi. xii. {Palaiacis no true coral, perhaps a Protozoon or 
Sponge). S. W. Ford, Descriptions of two new primordial fossils ; Am. 
J. Sci. (3) XV. pp. 124-127 {Protocyathus rarus^ g. & sp. nn.). B. Gas- 
TALDI, Su alcuni fossili paleozoic! delle Alpi marittime e dell’ Apennino 
ligure studiati da G. Michelotti ; Atti Acc. Rom. (3) i. pp. 113-128, 
pis. i. & ii. H. A. Nicholson, On the minute structure of the corals of 
the genera Heliophyllum and Crepidopliyllum ; Ann. N. H. (5) i. pp. 44-64. 
K. VON Fritsch, Fossile Korallen der Nummulitenschichten von 
Borneo ; Palaeontographica, suppl. iii. pp. 93-136, pis. {Ceratophyllia., Poly- 
arcBa, g. n.) R. F. Tomes, On the stratigraphical position of the Corals 
of the Lias of the Midland and Western Counties oY England and of 
South Wales; J. G. Soc. xxxiv. pp. 179-196, pi. ix. {Tricycloseris^ g, n.). 
HYDROZOA. 
1. Allman, G, J. Hydrozoa. In Nares’s “Narrative of a Voyage to 
the Polar Sea,” &c. (Loudon : 1878, 8vo), vol. ii. pp. 290-292. 
2. Balfour, F. M. Recent Researches on the Nervous System of the 
Medusce. Q. J. Micr. Sci. xviii. pp. 340-346. 
3. Bergh, R. S. Nogle Bidrag til de athecate Hydroiders Histologie. 
Vid. Medd. 1877-78, pp. 182-208, pi. iii. 
4. Bohm, R. Helgolander Leptomedusen. Jen. Z. Nat. xii. pp. 68-203, 
pis. ii.-vii. 
6. CiAMiciAN, J. Zur Frage iiber die Entstehung der Geschlechtsstoffe 
bei den Hydroiden. Z. wiss. Zool. xxx. pp. 601-610, pis. xxxi. & 
xxxii. 
6. Clark, S. F. A new locality for CordylopTiora. Am. Nat. xii. 
pp. 232-234. 
7. Claus, C. TJeber Halistemma tergestinum. sp. n., nebst Bemerkungen 
iiber der feinern Bau der Physophoriden. Arb. Z. Inst. Wien, i. 
pp. 1-66, pis. i.-v. 
8. . Untersuchungen iiber Charyhdea marsupialis. Op. cit. ii. pp. 
221-276, pis. i.-v. 
9. . JJeheY Teti'apteron (Tetraplatea) volitans. Arch. mikr. Anat. xv. 
pp. 349-369, pi. xxii. 
10. Engelmann, T. W. Ueber Trembley’s Umkehrungsversuch an 
Hydra. Zool. Anz. i. pp. 77 & 78 ; Onderz. phys. Lab. Utrecht (3) 
V. pp. 120-122. 
